If you choose to perform auto repairs to your Suzuki GN 125 then it is usually a great idea to possess a Workshop Manual for reference in the event that you need to know ways to take out a certain component like the Clutch and match it again safely.
Suzuki GN 125 Workshop Manuals are able to offer special diagnostic guides for your automobile therefore if something is faulty it can help you figure out what the issue is and the best way to make it better. After that you can analyse if you can do this yourself or in the event the job is too big you can actually make a booking for your GN 125 right into a nearby mechanic.
Suzuki GN 125 manual